光子学报, 2010, 39 (11): 2078, 网络出版: 2010-12-07
基于纠缠交换和团簇态实现二粒子任意态的可控隐形传态
Controlled Teleportation of an Arbitrary Twoparticle State by Using a Fourqubit Cluster State and Entanglement Swapping
量子光学 团簇态 可控量子隐形传态 二粒子任意态 纠缠交换 Quantum optics Cluster state Controlled teleportation Arbitrary twoparticle state Entanglement swapping
摘要
提出一个对二粒子任意态的可控隐形传态方案,利用四粒子团簇态作为量子信道,用EPR态实现控制.首先,发送者向控制者提出申请,控制者再对其拥有的2个粒子做Bell基测量,并把结果通知发送者,实现纠缠交换.然后,发送者对自己手中的四个粒子做适当的幺正变换,接着进行纽曼测量,并把结果通知接受者.接受者根据发送者的测量结果,对自己拥有的粒子做适当的幺正变换,就可以重建发送者的二粒子任意态.方案成功的概率为100%.
Abstract
A new scheme for controlled teleportation of an arbitrary twoparticle state is proposed in detail, using a fourparticle cluster state as quantum channel and EPR state to achieve control. First of all, the sender applies to the controller, and then the controller performs the Bellbased measurement on the two particles of his own. And the controller notifies the sender to achieve entanglement swapping. Then, the sender makes the appropriate unitary transformation and performs a Newman measurements on the four particles of his own. And the results inform the receiver. According to the sender′s measurement results, the receiver can reconstruct the arbitrary twoparticle state after he makes the appropriate unitary transformation on his own particles. The success probability of the program is 100%.
刘俊昌, 李渊华, 聂义友. 基于纠缠交换和团簇态实现二粒子任意态的可控隐形传态[J]. 光子学报, 2010, 39(11): 2078. LIU Junchang, LI Yuanhua, NIE Yiyou. Controlled Teleportation of an Arbitrary Twoparticle State by Using a Fourqubit Cluster State and Entanglement Swapping[J]. ACTA PHOTONICA SINICA, 2010, 39(11): 2078.